# Hanzo Pay — Hanzo AI

> A complete payment gateway bridging fiat and crypto.

Available Now

# Hanzo Pay

Take crypto payments

A complete payment gateway bridging fiat and crypto. Accept stablecoins, process card payments, enable on/off-ramps, and handle compliance—all through a single API.

### Crypto Checkout

Accept USDC, USDT, ETH, and 100+ tokens. Embeddable checkout widget included.

### Card Payments

Traditional card processing with instant crypto settlement.

### On/Off Ramps

Let users buy crypto with cards or sell crypto to their bank account.

### Multi-Currency

Accept payments in 50+ fiat currencies with automatic conversion.

[Back to Web3 Overview](https://hanzo.ai/blockchain)

## Get Your API Key

Start building in under 5 minutes

HA

Failover

<50ms

Latency

100+

Chains

Start Building Free

View Documentation

No credit card required. Free tier includes 300M compute units/month.

Trusted by developers building:

DeFiNFTsPaymentsGamingAI Agents

## Key Capabilities

Everything you need, nothing you don&#x27;t.

### Crypto Checkout

Accept USDC, USDT, ETH, and 100+ tokens. Embeddable checkout widget included.

### Card Payments

Traditional card processing with instant crypto settlement.

### On/Off Ramps

Let users buy crypto with cards or sell crypto to their bank account.

### Multi-Currency

Accept payments in 50+ fiat currencies with automatic conversion.

### KYC/AML Built-In

Integrated compliance checks. Stay compliant in 100+ countries.

### Invoicing

Generate and send crypto invoices. Track payment status automatically.

### Instant Settlement

Receive funds instantly in your preferred currency—crypto or fiat.

### QR Payments

Generate QR codes for in-person payments. Mobile-optimized flows.

### Business Dashboard

Track revenue, refunds, and disputes. Export reports for accounting.

## Simple to Integrate

Get started with just a few lines of code. SDKs for every language.

Solidity

Node

Python

Go

Rust

C

C++

Ruby

PaymentReceiver.sol

```
// SPDX-License-Identifier: MIT pragma solidity ^0.8.24; import "@hanzo/pay/IHanzoPay.sol"; import "@hanzo/pay/IPaymentReceiver.sol"; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; contract MerchantContract is IPaymentReceiver { IHanzoPay public hanzoPay; mapping(bytes32 => bool) public processedPayments; event PaymentReceived(bytes32 indexed paymentId, address token, uint256 amount); constructor(address _hanzoPay) { hanzoPay = IHanzoPay(_hanzoPay); } // Receive payment callback from HanzoPay function onPaymentReceived( bytes32 paymentId, address payer, address token, uint256 amount, bytes calldata metadata ) external override { require(msg.sender == address(hanzoPay), "Only HanzoPay"); require(!processedPayments[paymentId], "Already processed"); processedPayments[paymentId] = true; // Decode order info from metadata (string memory orderId) = abi.decode(metadata, (string)); // Process order fulfillment _fulfillOrder(orderId, payer, amount); emit PaymentReceived(paymentId, token, amount); } // Create payment intent on-chain function createPaymentIntent( uint256 amount, address[] calldata acceptedTokens ) external returns (bytes32 paymentId) { paymentId = hanzoPay.createIntent( amount, acceptedTokens, address(this), abi.encode("order_123") ); } function _fulfillOrder(string memory orderId, address buyer, uint256 amount) internal { // Custom fulfillment logic } }
```

## Built For

### E-Commerce

Accept crypto alongside traditional payments. Automatic conversion to your preferred currency.

### SaaS Subscriptions

Recurring crypto payments with automatic retry and dunning.

### Marketplaces

Split payments, escrow, and multi-party settlements for marketplace transactions.

### In-Person Retail

POS integration with QR payments. Instant settlement to your bank.

## Supported Chains

LuxEthereumPolygonArbitrumOptimismBaseSolanaBNB Chain

## Start Building with Hanzo Pay

Get your free API key and ship your first request in under 5 minutes. No credit card required.

Get Your API Key

[Explore All Web3 Products](https://hanzo.ai/blockchain)

## Open source

License: Apache-2.0[luxfi/pay](https://github.com/luxfi/pay)

## Get Hanzo Pay

Crypto payments

[Deploy to Cloud](https://console.hanzo.ai/deploy)